BfJpgTn

BfJpgTn about lame build

about

for whatever reason i need to be able to resize images on the fly on a blackfin SBC. This may eventually be part of the BalloonSatellite or my future mars rover or something. At the moment I need this functionality for a demo I'm doing at work. I'll flesh this out as it comes about but for now I just need to keep notes will I get it built.

2k thumbnail

37k original

This package is available on sourceforge here.

This program requires libjpeg so be sure to build that in to your uClinux image.

lame build

• blow up the tarball somewhere
• run ./configure (you shouldn't need to run make but configure will setup the config.h file)
• change to the src dir
• comment out #define HAVE_STDLIB_H 1 in config.h or better yet throw an #ifndef around it
• change # include <config.h> to # include "config.h" in the source files
• execute the following to build for blackfin
  • obviously change the library and include paths for your system (do i really need to tell you that?)

#lame build script to get jpgtn compiled for the blackfin running uClinux
bfin-uclinux-gcc -DHAVE_CONFIG_H -I/home/cpepe/working/uClinux-dist-adi/lib/libjpeg/ -g -O2 -c jpgtn.c
bfin-uclinux-gcc -DHAVE_CONFIG_H -I/home/cpepe/working/uClinux-dist-adi/lib/libjpeg/ -g -O2 -c readjpeg.c
bfin-uclinux-gcc -DHAVE_CONFIG_H -I/home/cpepe/working/uClinux-dist-adi/lib/libjpeg/ -g -O2 -c writejpeg.c
bfin-uclinux-gcc -DHAVE_CONFIG_H -I/home/cpepe/working/uClinux-dist-adi/lib/libjpeg/ -g -O2 -c resizepic.c
bfin-uclinux-gcc -Wl,-elf2flt -L/home/cpepe/working/uClinux-dist-adi/lib/libjpeg/ -g -O2 -o jpgtn  jpgtn.o readjpeg.o writejpeg.o resizepic.o  -ljpeg

• jpgtn: jpgtn cross-compiled for the blackfin

-- ChristopherPepe - 01 May 2007